BRPI0721444A2 - electric power system - Google Patents

Abstract

ELECTRIC POWER SYSTEM. Problems: Providing a power system consisting of interconnecting a plurality of power consumers through a power consumption control device capable of not only sustaining operation without relying on conventional power system, but also coexisting with power system conventional. Troubleshooting means: A plurality of energy consumers, each equipped with a power generation apparatus (100), a power storage apparatus (102) and a plurality of charges (103) and a consumption control apparatus (104) are interconnected via a power consumption line (W) A power consumption control device (51) makes a decision whether a power outage or shortage occurs in a power consumer (11) equipped with a power consumption device (11). Power Consumption Control Systems (51) based on data on total power, maximum power consumption and total power consumption of each power consumer predicted for tomorrow through a neural network and controls the operation to receive power from another energy consumer (12-15) equipped with energy generating apparatus (101, 151) and / or an energy storage apparatus (102, 152) if energy deficiency occurs in the energy consumer (11) , and to distribute energy to another energy consumer (12-15) if excess energy is generated at the energy consumer (11).

Description

"ELECTRIC POWER SYSTEM" TECHNICAL FIELD

The present invention relates to an electric power system in which a plurality of electric power suppliers and consumers are alternately interconnected by electric power supply and consumption control devices.

KEY TECHNIQUE

In a known electric power system, as shown in Figure 2, "radial system" is critical, in which a large scale power plant 91 is a top and consumers 92 are a base. In Figure 2, to ensure a plurality of transmission systems a mesh system is introduced somewhere. This type of power system is configured as a single system over a wide area (eg several tens of thousands of square kilometers) and large scale (several tens of Gigawatts).

On the other hand, in recent years, a distributed power generation system of a collaborative type system (eg, refer to Patent Document 1) with solar generation and a fuel cell has been focused. The collaborative-type distributed power generation system is usually built in an extreme region, or a local region near the end of the known radiated power system, and is premised on interconnection with the power system.

Patent Document 1: Open Japanese Patent Application Number 6-327.146

Patent Document 2: Open Japanese Patent Application Number 2004-15.882

DISCLOSURE OF INVENTION

PROBLEM TO BE SOLVED BY THE INVENTION In the structure of the known electric power system shown in Figure 10, since electric power transport is performed massively over a long distance and is always performed continuously ("simultaneous equal quantity rule")) , there are many losses; and in electrical generation from reproducible energy such as solar and wind energy, since their reproducible energy is ubiquitous, it is difficult to build a large-scale energy plant using these energies.

An object of the present invention is to provide an electrical power system in which a plurality of electricity suppliers and consumers who consume electricity as well as supply electricity are configured by being alternately connected by means of control devices for the supply and consumption of electricity. , the power system being self-sustaining without relying on the known power system. This is not intended for the system of the present invention to eliminate coexisting with the known electrical power system.

MEANS TO SOLVE THE PROBLEM

According to a first embodiment of an electric power system of the present invention to solve the above problem, a standalone distributed electric power system is provided which accommodates excess or deficient electric power between respective suppliers and consumers of electricity with each other. the others, in which a plurality of electricity suppliers and consumers are directly or indirectly alternately connected, the electricity supplier and consumer being provided with one or a plurality of power generation devices, one or a plurality of power devices. electrical storage, and one or a plurality of electrical consumption devices and an electrical supply and consumption control device.

In the power system, each of the power supply and consumption control devices judges whether or not power failure has occurred or whether or not there has been excess power in each of the power-supplying suppliers and consumers. of electricity supply and consumption control, receives electricity from another electricity supplier and consumer in the case where a power outage occurred at the electricity supplier and consumer, and controls to distribute electricity to another electricity supplier and consumer where excess electricity has occurred at the electricity supplier and consumer.

The above judgment and control is automatically or manually performed based on that model of classification pattern for a neural network formed on a computer,

Total electricity production, maximum amount of electricity consumed and amount of total electricity consumed for the next day are predicted based on the minimum actual past performance data, weather forecast and calendar information for the next day, and amount solar radiation in good weather and wind strength of the day,

actual performance data of predicted items, and calendar and weather information, the theoretical amount of solar radiation and wind strength, and the like from a past fixed period, including at least the day, are collected for relearning from the neural network,

learning is accomplished by an error back-propagation algorithm based on the prediction data and actual performance data of the day, and

Total electricity production, the amount of maximum electricity consumed and the amount of total electricity consumed the next day are predicted by an updated neural network.

Furthermore, according to a second embodiment of an electric power system of the present invention, there is provided an electric power system in which a plurality of electric energy suppliers and consumers are alternately interconnected, the electric energy supplier and consumer being endowed with. of at least one device selected from one or a plurality of power generating devices, one or a plurality of power storage devices and one or a plurality of electric power consumption devices and a power supply and consumption control device. electricity.

In the electricity system, the plurality of electricity suppliers and consumers is divided into a plurality of groups; and the power supply and consumption control device that belongs to each group

judges whether or not a power outage occurred or whether or not an excess of power occurred in the group,

receives electricity from another group to which the electricity supplier and consumer with power generation device and / or electrical storage device belongs in the case where a power outage occurred in the group and controls to distribute electricity to another group in the In this case, excess electricity has occurred in the group, and controls the plurality of power generation devices in the respective suppliers and consumers of the respective groups in the distribution and receipt of electricity between the respective groups.

The above judgment and control is judged automatically or manually and controlled based on whether a standard classification model for a neural network is formed on a computer,

Total electricity production, the amount of maximum electricity consumed and the amount of total electricity consumed for the next day are predicted based on the minimum actual past performance data, weather forecast and next day's calendar information, and theoretical amount weather and wind strength of the day, actual performance data of the weather items and calendar information and theoretical amount of solar radiation from a past fixed period, which includes at least the day, are collected for relearning of the neural network, the relearning is performed by an algorithm of

error backpropagation based on the prediction data and actual performance data of the day, and

The total electricity production, the amount of maximum electricity consumed, the amount of total electricity consumed, the next day are predicted through an updated neural network.

Each electricity supplier and consumer of the electricity system of the present invention may establish or change operating conditions of the electricity supply and consumption control devices of each electricity supplier and consumer based on prediction information of total electricity production. , the maximum amount of electricity consumed, and the amount of total electricity consumed the next day from another supplier and consumer of electricity obtained from another supplier and consumer of electricity.

In the trade-off between surplus electricity and current electricity that is supplied and consumed between the respective suppliers and consumers of electricity, information on the supply and consumption of electricity (for example, total electricity in the power supply and power supply, electric power receiving / power receiving time and time, and the like) are switched from the power supply side to the power receiving side and from the power receiving side to the power supply side. energy through a communication network such as the Internet; and, as a result, it is possible to monitor whether or not the power generation supply and consumption is properly performed, for example, it is possible to check whether or not electricity is stolen midway. In the electrical system of the present invention the electrical storage device at the electrical supplier and consumer may use together a storage battery and a double layer electric capacitor. In addition, in an electrical device such as an individual refrigerator and air conditioner in each electricity supplier and consumer, there is a case where one endowed with an electrical storage device that serves as a booster power source such as a battery that can operate the device for a predetermined time, for example approximately two hours.

The electrical storage device completes a power outage at a peak, the peak being a peak power consumption of households or generic offices that is difficult to predict given the power supply performance of a power generation device. energy and an electrical storage device at each electricity supplier and consumer; and consequently there is an advantage capable of reducing unnecessary booster power installations in each electricity supplier and consumer.

Incidentally, in a power system that depends on the known power system, the booster power that would be required is established by dividing the respective consumer layers into several layers and taking the power consumption at the peak of the respective consumer layer; and therefore it is admitted that large booster facilities are essential. At this point, in the system of the present invention, electrical energy that is insufficient at peak in generic households whose peak consumption is difficult to predict is self-compensating in one way. Therefore, in full booster electrical installations in nations and regions can be deducted.

In this case it is preferable to quantitatively encompass a change in the amount of electrical storage of the storage battery and transient operation characteristics of its charge and discharge. This can adequately cover and analyze charge and discharge phenomena of the double layer electric capacitor storage battery.

When the amount of electrical storage in the battery of

storage is detected the amount of loading and unloading can be controlled so that its detected value is not less than a predetermined lower limit; consequently, capacitive transient response characteristics can be utilized without involving unnecessary storage battery consumption.

Furthermore, in the present invention, although not shown in the drawing, a mobile power generation device and / or a mobile electrical storage device provided by one electricity supplier is / is moved to another electricity and distribution and receiving supplier. required electricity can be realized there.

In the system of the present invention, excess electricity that is still overabundant in each electricity supplier and consumer is put together as electricity conditions or electricity information in a plurality of data-based electricity supplier and consumer. electricity in which excess electricity data is collected from each electricity supplier and consumer and is totaled, processed and accumulated; and excess electricity may be projected for purchase and sale of electricity and global warming gas credit issuance. Incidentally not only too much electric power, but also all reproducible source and energy can be projected, depending on the rules of nations and regions.

For example, data for each electrical energy in which excess electricity at each electricity supplier and consumer is measured is accumulated in time sequence as information for each electrical energy; and the accumulated electricity information for each predetermined moment that can be arbitrarily adjusted is sent to a meeting server unit. The meeting server unit receives the electrical energy information sent from a plurality of electricity suppliers and consumers and totals, records and joins in a database at the meeting server unit.

Then, the electricity information is statistically handled by the meeting server unit, past actual performance is extracted, and future electricity, predicted based on the information, can be put up for sale to the electricity purchase and sale markets.

In addition, the electricity information is cumulatively handled by the meeting server unit and is further converted to the amount of reduction in global warming gas by a deductive method in accordance with established laws and attitudes, and rules and regulations. , or by an appropriate deductive method. Therefore, the future amount of global warming gas reduction predicted based on actual performance of the past converted amount of global warming gas reduction can be put up for sale in buy and sell markets as a global warming gas emission credit. EFFECT OF INVENTION

The present invention is an electric power system in which the known electric power system is not provided and each electricity supplier and consumer is basically independent. That is, each electricity supplier and consumer performs send and receive control (also referred to as distribution and receipt hereinafter, as above) of electricity with other electricity suppliers and consumers through a neural network. , based on prediction data such as electricity production prediction and the amount of electricity prediction consumed from each supply and consumption of electricity when electrical power outage or excess electricity occurred; and consequently, it becomes possible to achieve independence throughout the system in which respective suppliers and consumers of electricity are coupled by an electricity grid.

In the present invention a plurality of electricity suppliers and consumers may be connected to a branched electricity supply and consumption line, a ribbed electricity supply and consumption line, a radiated electricity supply and consumption line. , to a grid-shaped power supply and consumption line, or a power supply and consumption line combined by these lines (hereinafter each previously mentioned line is also referred to as a power supply and consumption network). in the present invention).

In the present invention respective electricity suppliers and consumers control the electricity supply and consumption of respective electricity suppliers and consumers while exchanging reciprocal electricity supply and consumption information between their respective electricity supply and consumption control devices. . Information exchange at this time can be accomplished via a data communication network, such as the Internet.

In the present invention a plurality of electricity suppliers and consumers may be dc connected to each other to sufficiently utilize the advantage of transmission and

DC electrical distribution.

BEST MODE FOR CARRYING OUT THE INVENTION

Figure 1 is an explanation diagram showing an embodiment of an electrical power system of the present invention; Fig. 2 is a block diagram illustrating a configuration of an electricity supplier and consumer and an electrical supply and consumption control device thereof; Figure 3 is an explaining diagram at a time when a power supply and consumption control device from one electricity supplier and consumer performs AC power supply and consumption with another electricity supplier and consumer in a system. power supply of the present invention; Figure 4 is a diagram of explanation at the moment when a power supply and consumption control device of one electricity supplier and consumer performs DC power supply and consumption with another electricity supplier and consumer in a power supply system. electrical energy of the present invention; Fig. 5 is an explaining diagram in the case of supplying DC electric power to a load through household wiring of an electric power supplier and consumer in an electric power system of the present invention; Figure 6 is an explaining diagram showing a state where suppliers and consumers of electricity are hierarchized in an electrical power system of the present invention; Figure 7A is a diagram of explanation in the case where electricity suppliers and consumers are connected in a branched form; Figure 7B is an explaining diagram in the case where electricity suppliers and consumers are connected in a star shape; and Figure 7C is an explaining diagram in the case where suppliers and consumers of electricity are connected in a form of network; Figure 8 is a diagram showing an example of an electricity supplier and consumer connected via an electricity supply and consumption line that is different from a plurality of other electricity suppliers and consumers; Figure 9 is a block diagram showing an example process of a neural network; Figure 10 is an explanatory diagram showing a known electrical power system.

An electricity system 1 shown in Figure 1 shows only electricity suppliers and consumers of a plurality of electricity suppliers and consumers 11 to 15. The respective electricity supplier 11 to 15 are alternately interconnected via a W line. supply and consumption of electricity.

The electricity supplier and consumer 11 is provided with an energy generating device 101, an electrical storage device 102, a plurality of charges (electrical devices) 103 and an electrical supply and consumption control device 104. Incidentally , a plurality of fixtures 103 are shown by Al, A2, ... An. In addition, in Figure 1 other suppliers and consumers of electricity 12, 13 and 14 and another supplier and consumer of electricity (not shown in the drawing) is also provided with an energy generating device, an energy storage device, a plurality of charges (electrical devices) and an electrical supply and consumption control device as in the consumer electricity supplier 11; and each device is branched to the home wiring. Incidentally, there is also a case where all of their respective electricity suppliers and consumers or arbitrary electricity suppliers and consumers mount the power generator 101 and / or the energy storage device 102 on a truck bed, or the like, or provide them in a manner that may be assembled or distribute the power generating device 101 and / or the electrical storage device 102 to other suppliers and consumers of electricity as required; and distribution and receipt of electricity is performed there. In the present invention the respective suppliers and consumers of electricity are loosely coupled to each other. That is, each of the electricity suppliers and consumers is basically of an independent type, may receive electricity from other electricity suppliers and consumers when a power outage has occurred, and may supply electricity to another electricity supplier and consumer. when excess electrical power has occurred.

Electricity supplier and consumer 11 are, for example, generic homes, miscellaneous residence houses, small, medium and large scale factories, low, medium and high rise buildings, and the like. In addition, a group in which these generic residences and various residences are brought together may also serve as the electricity supplier and consumer 11 of the present invention.

Typically, power generating device 101 is a solar generator and a DC power supply such as fuel cell, or the like. There is also a case where wind generation, biomass generation or a cogeneration system (hereinafter referred to as cogene in this description) such as a gas engine system, a gas turbine system, a fuel cell system, and Similar features are used as power generator 101. A wind generator, biomass generator and cogener usually serve as the AC power supply, however its output is converted to CAJCC and can be used as a power supply. DC power. In addition the electrical storage device 102 serves as a

DC power supply.

In addition, although not shown in the drawing, a flywheel unit may also be used for the power generation device 101. The flywheel unit may also be used for the electrical storage device 102. In addition, an electrical storage device combined with A storage battery and a double layer electric capacitor is also included. There is a case where power generation device 101 and / or electrical storage device 102 are mounted on a truck bed or similar and moved to another power provider, and distribution and receipt of power is performed there. Charge 103 is, for example, a DC device or an AC device, such as an electric light, an air conditioner, a refrigerator, an electromagnetic cooking device, a rice cooker, and the like.

As shown in Figure 2 by way of example, the device

supply and consumption control unit 104 has a control unit 104b which detects a time when excess power has occurred at the electricity supplier and consumer 11, for example, a time when the amount of power usage of the load 103 is reduced and the electrical storage device 102 is close to full charge or full charge and can supply electrical power generated by the power generating device 101 from an electrical power sending and receiving unit 104a to the other supplier and consumer of electricity to or the electricity supplier and consumer 15 that is connected to the power consumption supply line W. There is also a case where this electricity supply is accomplished by moving the power generating device 101 or moving the electrical storage device 102 without using the supply line and In addition, the power supply and consumption control device 104 has the control unit 104b which detects a time when a power outage occurred at the power supplier and consumer 11, for example a moment when the amount of electricity or load utilization 103 is rapidly increased. So the power supply and consumption control device 104 has the power send and receive unit 104a which receives power through the power supply and consumption control devices of other power suppliers and consumers 12, 13 and 14, in which an excess of electricity has occurred, the electricity suppliers and consumers being connected to the electricity supply and consumption line W, or via an electrical supply and consumption control device 153 (to be described later) of the electricity supplier and consumer 15 and may drive the load 103 by controlling the control unit 104b, or may store in the electrical storage device 102.

The power supplier and consumer 15 includes a power generating device 151, an electrical storage device 152, and a power supply and consumption control device 153. Incidentally the power supplier and consumer may include only or the device power generation or electrical storage device. Power generation device 151 is typically a medium scale facility for thermal power, hydropower, wind power and the like, which includes a cogeneration facility and a biomass generation facility; and the electrical storage device 152 is typically a secondary battery; however, there is also one that is combined by the storage battery (secondary battery) and the double layer electric capacitor. The electricity supplier and consumer 15 may supply electricity to the electricity supplier and consumer 11 or other electricity suppliers and consumers 12 to 14, and the like as described above, through the supply and consumption control device. electricity. In addition, and conversely, the electricity supplier and consumer 15 may receive electricity supply from the electricity supplier and consumer 11 (or other electricity suppliers 12 to 14, and the like). Distribution and receipt of electricity at the electricity supplier and consumer 15 are also carried out through the electricity supply and consumption control device; however, as described above, the distribution and receipt of electricity may be accomplished by introducing the mobile power generation device and the electrical storage device of another electricity supplier and consumer to the supplier and consumer 15.

Electric energy in which the supplier and consumer of electricity 15 provides to the supplier and consumer of electricity 11 and the like, is electrical energy generated by the power generating device 151 or electrical energy stored in the electrical storage device 152; and electrical energy in which the electricity supplier and consumer 15 is supplied from the electricity supplier and consumer 11 and the like is stored in the electrical storage device 152. In the electrical power system of the present invention a plurality of generating devices that include a cogene and a biomass generator in their respective energy suppliers and consumers can be controlled at the same time automatically and manually based on weather forecast, electricity consumption prediction, heat consumption prediction values , values established by each electricity supplier and consumer or the like, in the distribution and receipt of electricity through the electricity supply and consumption control device of each electricity supplier and consumer (refer to 104c, shown in figure 2). In addition, each supplier and consumer refers to various information from the supply and consumption control device at another supplier and consumer, and may establish or exchange supply control device operating conditions. and electricity consumption of the electricity supplier and consumer based on the amount of electricity consumption that is estimated by the electricity supplier and consumer (refer to Figure 2).

In the above respective power generation devices 101 and 105, the control may be effect individually for each power generation device, for example a solar generator is controlled by a conditioner; and a fuel cell and a microgenerator are controlled by a power conditioner. However, in the electrical power system of the present invention a control element common to each power generating device is globally controlled by the power supply and consumption control devices 104 and 105 and a specific control element for each power generating device. Individual power generation is individually controlled; consequently, power generation devices 101 and the same 151 in a handful of Ileo same power supplier and consumer 15 can be optimally controlled as a whole.

Incidentally, each power generation device such as a known solar generator and a fuel cell only perform full output control and system connection control through each power conditioner; however, in the present invention, electrical power may be supplied and consumed using a flywheel unit, or the like, which is equalized between the output of each power generating device from zero to full output, so that control can be freely done. by the power supply and consumption control devices 104 and 153.

On the other hand, the electrical storage devices 102 and 152 typically use a secondary battery independently as a dc power supply. However, in the electrical power system of the present invention the storage battery (secondary battery) and the double layer electric capacitor may be used together for the electrical storage devices 102 and 152.

When the above storage battery and the double layer electric capacitor are used together, for example, control to be used which depends on electrical storage characteristics and discharge characteristics is controlled by the control and consumption devices 104 and 153. ; consequently it becomes possible to respond reasonably to the diversification of the mode of supply and consumption of electricity in each supplier and consumer of electricity or the diversification of the mode of supply of electricity in each supplier and consumer.

In this case, the storage battery and the double-layer electric capacitor are arranged in a decentralized manner, for example, the double-layer electric capacitor is mounted on the power supply and consumption control devices 104 and the same 153, and the storage battery is placed separately or mounted on fixture 103; consequently a remaining battery level of the electrical storage devices 102 and 152 may be passed to provide according to the order of priority of the power consumption destinations to the

by way of example.

In addition, in the past, various types of electrical devices serving as the load 103 supplied with the electricity supplier and consumer 11 are operated individually by simply introducing and cutting off (on and off) the electrical energy.

However, in the electrical power system of the present invention, a preferred starting order and the size of the starting electrical power (descending or reverse order) of an individual electrical device such as a refrigerator, air conditioner, television, or the like, which constitute the charge 103 in the electricity supplier and consumer 11, is set in the electricity supply and consumption control device 104; for example, control is done so as to be an order in which a starting order (or an off order) or an order in which an electromotive force is in a descending order; consequently it becomes possible to equalize electricity consumption. In addition, when a large starting electric device is broken, the power supply and consumption control device 104 may be actuated so that electrical power at a time of startup of a large starting electric device It is supplied from the storage battery supplied with the double layer electric capacitor and the flywheel unit.

In addition, for hardly predictable power consumption in generic homes and their peak time, for example, the electrical storage device such as a battery capable of operating device 103 for approximately two hours is mounted on the electrical device 103 as a household refrigerator and an air conditioner, so that the power outage at the peak of consumption can be done internally to the consumer of electricity. This technique also contributes to the equalization of electricity consumption.

When electricity consumption can be equalized by controlling the order of priority at a time of startup as described above, dispersion control of an excess current that is easy to flow to the power supply and consumption control device can be accomplished. electric power 104 and respective electric devices 103 at a time of departure of the respective electric devices 103; therefore, there may be extended lifetime of the control device 104 itself, its electrical devices or wiring components such as wiring for connection between them. In addition, control can be done so as not to cause a large pulse, or to make it difficult to perform a pulse in which current becomes maximum or minimum through the power supply and consumption control device. It is therefore useful for ensuring more stable operation of the power supply and consumption control device 104 and the individual electrical device 103.

In addition, the power supply and consumption control device 104 and the power utilization are made in DC so that the TV standby mode, or the standby operation of other devices, can be eliminated. Therefore, waste of energy consumption can be suppressed.

In the power system shown in Figure 1, in the case where the power supply and consumption control devices 104 performs power supply and consumption with other suppliers and consumers of power 12 to 15, the power supply control device and electricity consumption 104 exchanges information with electricity supply and consumption control devices of other electricity suppliers and consumers, and determines supply and consumption conditions, or the like.

In the electrical system of the present invention, total electricity production, the maximum amount of electricity consumed, and the amount of electricity consumed the next day from each electricity supplier and consumer, from which the prediction values can be obtained By a neural network of the control block shown in Fig. 9, it can be served as the above information for the exchanged information. This point

will be described in the following.

In the present invention, first, "the total solar cell electricity production", "the maximum daily amount of electricity consumed" and "the amount of total daily electricity consumed" of the next day of each electricity supplier and consumer are estimated (predicted). The estimate is made by entering the next day's weather forecast and past time information, each actual solar cell electricity production performance, the amount of maximum daily electricity consumed, and the amount of day-to-day total electricity. consumed day, calendar information (day of the week and public holiday) and theoretical amount of solar radiation data in a region and its neighboring region of each supplier and consumer in a hierarchical neural network.

The neural network learns a climate pattern in a region and a peripheral region from each electricity supplier and consumer, and a combination of actual performance of total electricity production and electricity consumption in the region as a standard; and performs nonlinear interpolation estimation by checking a weather forecast pattern of the next day against the past pattern.

The learning pattern performs model updating using daily observation data. Therefore, the forecast forecast also continues to improve day by day. In addition, the learning pattern can account for an autonomous model update for environmental assessment (total solar cell electricity production, consumer change, longer-term fluctuation, abnormal intermediate-term weather phenomena and the like) in each region. of each supplier and consumer of electricity. Incidentally, establishment of each supplier and consumer database in a region of each electricity supplier and consumer is not required.

The above prediction is performed by the following procedure: (i) prepare a neural network model that predicts electricity production and the amount of electricity consumed (in case of no presence of the above data a provisional model is made using false data) Enter actual past performance data, weather forecast and next-day calendar information, and the amount of good-weather solar radiation of the day (theoretical value) into the model. (At this time it is preferable to add weather information not only from the region, but also from a neighboring region to improve prediction accuracy).

(ii) Predict the total electricity production, the maximum amount of electricity consumed, and the amount of total electricity consumed. (Estimation of nonlinear interpolation through pattern verification).

(iii) Collect actual performance data for relearning from

neural network.

Collect actual performance data and prepare relearned neural network. Actual performance data are several types of actual performance data from a past fixed period, including the day (electricity production, maximum electricity, total electricity, calendar and time information, and theoretical amount of solar radiation in time). good).

(iv) Make the neural network relearn using

reverse error propagation.

(v) Predict the total electricity production, the maximum amount of electricity consumed and the amount of total electricity

consumed the next day through an updated neural network.

Thereafter improve the accuracy of prediction data.

repeating (i) to (v).

If prediction values (data) of the total production of

electricity, maximum amount of electricity consumed and energy

next day's total electricity at each energy supplier and consumer

are obtained by performing as described above, sending and receiving

the following day's electricity between respective suppliers and consumers

Electricity is decided in advance after comparing and alternately considering respective data by exchanging information (data) between the respective suppliers and consumers of electricity. Actual electricity send and receive performance data for the day is maintained and is served as one of the basic electricity send and receive data between respective electricity suppliers and consumers from the day after next (the following day, as seen from day).

In the electricity system shown in figure 1, the supply and consumption of electricity between suppliers and consumers of electricity may be by AC or may be by DC; however, in any case the building can be done as a local power system, or the building can be done as a large power system in which these power systems

electric are combined. In the electric power system shown in figure 1, although

Not shown in the drawing, there is also a case where the electricity supplier and consumer is comprised of loads only and connected to the W line of electricity supply and consumption. In addition, in the electricity system shown in Figure 1, equalization of electricity supply and consumption is performed by alternately connecting many different suppliers and consumers of electricity.

In the case where the electrical storage device 102 of the electricity supplier and consumer 11 is of large capacity, and when it is of high cost, it becomes possible to provide the loads by electricity to be supplied from another supplier. and consumer of electricity, using small capacity such as electrical storage device 102 (or not having electrical storage device 102). In this case it is preferable that suppliers and consumers of electricity different in the pattern of electricity consumption over time (eg homes and businesses) exist together in electricity system 1. In addition, it is preferable that these different in electric generation mode (eg a solar generating device, a wind generating device and a biomass generating device) as the electricity supplier and consumer 15 exist together.

Figure 3 is an explanation diagram showing an electrical system in which an electrical supply and consumption control device of one electricity supplier and consumer performs AC supply and consumption with another electricity supplier and consumer. electric

Electricity suppliers and consumers 11a, 12a, 13a, 14a and 15a shown in figure 3 correspond to electric energy suppliers and consumers 11, 12, 13, 14 and 15 shown in figure 1. A supply control device and The power consumption 51 of the supplier and consumer 11a shown in Figure 3 includes a control device 511 and a bidirectional AC / DC converter 512.

Control devices of the respective electricity suppliers and consumers are configured to be able to perform data communication via a CL communication line, and to be able to exchange supply and consumption information in case of electricity supply and consumption.

In addition, a power supply and consumption control device 61 from power supplier and consumer 15a includes a 611 control device, and a bidirectional AC / DC or DC / AC 612 converter. When power supply and consumption AC are performed between the suppliers and consumers of electricity, voltage, current, frequency and phase must be married between both the supplier and the consumer of electricity. This matching is performed by the power supply and consumption control devices 51 and 61. Incidentally, in Figure 3, although not shown in the drawing, the power supply and consumption control devices 51 and 61 may still include a circuit breaker. , a current limiter, a watt-hour meter and the like. In addition, in the electricity supplier and consumer equipped with a watt-hour meter and a capacitor, the control devices 51 and 61 control discharge; and the photovoltaic cell supplier and consumer with a photovoltaic cell is equipped with a conditioner that draws the maximum electrical energy from a nonlinear electromotive force and adjusts for electrical energy with rated characteristics.

Figure 4 is an explaining diagram showing the electrical system in which an electrical supply and consumption control device of one electricity supplier and consumer performs DC electrical supply and consumption with another supplier and consumer of electricity. electricity.

Electricity suppliers and consumers 11b, 12b, 13b, 14b and 15b shown in figure 4 correspond to the electric energy suppliers and consumers 11, 12, 13, 14, 15 shown in figure 1. A power supply and consumption control device Electricity 71 from the electricity supplier and consumer 15b shown in Figure 4 includes a control device 711 and a bidirectional DC / DC converter 712.

Control devices of the respective suppliers and consumers of electricity are configured to be able to perform data communication via a CL communication line, and can exchange supply and consumption information in case of

supply and consumption of electricity.

In addition, a power supply and consumption control device 81 from the supplier and consumer 1 Ib includes an 811 control device and a bidirectional DC / DC or 812 DC / DC converter. When the power supply and consumption DC power is performed between electricity suppliers and consumers, voltage and current adjustment is performed. Incidentally, in Figure 4, although not shown in the drawing, the power supply and consumption control devices 71 and 81 may further include a current limiter, a watt hour meter and the like. In addition, in electricity suppliers and consumers with a watt-hour meter and a capacitor, their control devices 51 and 61 control charge / discharge; and in the electricity supplier and consumer with a photovoltaic cell, a conditioner is provided that draws the maximum electrical energy from a nonlinear electromotive force and adjusts for the electrical energy of the

classified characteristics. Figure 5 is a diagram of explanation in case of distributing

dc power to a load through household wiring from a supplier

and consumer of electricity.

In one electricity supplier and consumer Ilc shown in figure 5, the power generation device, the electrical storage device and a plurality of charges in the electricity supplier and consumer 11 shown in figure 1 are specifically shown. Incidentally, a Electricity supply and consumption control device 71 shown in Figure 5 is the same as Electricity supply and consumption control device 71 shown in Figure 4.

In the electricity supplier and consumer 11c, the power generation device is a solar generator 701 by way of example, the electrical storage device is a battery 702 and the plurality of charges are a DC charge 7031 and an AC charge 7032. In this case, a bidirectional DC / DC converter 712 performs power supply and consumption with battery 702, solar generator 701 and DC load 7031 and performs power supply and consumption with AC load 7032 via a DC / power converter. CA 706.

Electricity generated by solar generator 701 is supplied to battery 702 and DC load 7031 via, for example, the bidirectional DC / DC converter 712 or supplied to AC load 7032 via DC / AC converter 706.

The power supply and consumption control device 71 includes a function that controls battery charging 702 and a function that compensates for stable output to the household wiring side L.

Electricity from the power supply and consumption control device 71 is supplied to the DC 7031 load through household wiring L and DC output 7051. Electricity from the power supply and consumption control device 71 is supplied for AC load 7032 via household wiring L, DC / AC converter 706 and AC output 7052. Incidentally, in Figure 4 the DC output and AC output are shown by one output respectively; however, the DC output and the AC output are provided with a plurality of outputs respectively, and the DC loads and AC loads can be connected to these outputs.

In the respective suppliers and consumers of electricity 11, 15, and the like in the electrical power system of the present invention described above, the electricity supply and consumption control devices 104, 153 and the like, in which the respective suppliers and consumer of electricity 11, 15 and the like are even served as nodes and the electric feed line W between the respective suppliers and consumers of electric power 11, 15 and the like is served as a link; consequently, the electricity grid is formed. Therefore, the respective power supply and consumption control devices 104, 153 and the like are provided with a function that controls the exchange of electricity between the respective suppliers and consumers of electricity.

electric power 11, 15 and the like.

The fundamental function of control devices of

electricity supply and consumption 104 and 153 is the determination of electricity suppliers and consumers 11, 15 and the like who serve as other partners when performing electricity exchange; determining whether the exchange of electricity with other partners is distribution or withdrawal; control of an electricity rate and an electrical energy, and the like. This function controls at a high level which connection is made by means of communication circuits between the electricity networks; data such as electricity required and electricity available for supply to reciprocal suppliers and consumers of electricity, an electricity and its electricity rate, and these related future estimates are exchanged and processed; and electricity between the respective suppliers and consumers of electricity is

accommodated with each other. The role of supply control devices and

Electrical consumption above 104 and 153 serves as a circuit breaker and a current limiter by means of configuration based on, for example, a voltage converter, a current controller and a switch which are provided with various control functions; individually switching channels of necessary electricity communication through converter control, or the like; and being based on the size of a transmission current and the characteristic analysis of the transient phenomenon. This allows the power supply and consumption control devices 104 and 108 to control, so that, for example, when an electrical failure occurred at a certain electricity supplier and consumer, each electrical device (charge 103), device electrical storage device 102 and power generator 101 of the supplier and consumer are not completely cut, but only one required line is cut and another line can be used without cutting.

Incidentally, in the electricity system shown in Figure 1, a properly collected number of groups of electricity suppliers and consumers can be treated as a supplier and consumer of electricity. As shown in Figure 5, electricity supplier and consumer groups Gl 1, G12, ... show one group at this time (for example, approximately several tens to ten thousand households).

In Figure 6 the electricity supplier and consumer groups Gl 1, G12, ... are alternately interconnected via SL supply and consumption control devices. In addition, the higher hierarchy of the electricity supplier and consumer groups Electric Gl 1, G12 ... is represented by G21, G22, ... and another higher hierarchy is represented by G31, G32, G33, .... In this case, although not shown in the drawing, another higher hierarchy of the that G31,

G32, G33, ... is formed. For example, the energy supplier and consumer groups

Electric Gl 1, G12, ... are established as a unit "county"; G21,

G22, ... are established as a "city" unit, and G31, G32, G33,

... are established as a "prefecture" unit.

In figure 6 the energy supplier and consumer groups

Gl 1, G12, ... are alternately connected with other suppliers and consumers of electricity through the SI electrical supply and consumption control devices; however, their respective higher and lower hierarchies are hierarchically connected to each other via power supply and consumption control devices S2, S3, S4, ...

In the above embodiments a case is described where the respective suppliers and consumers of electricity are connected in a branched form as shown in figure 7A. The respective suppliers and consumers of electricity may be connected in a star shape as shown in figure 7B, or may be connected in a network form as shown in figure 7C. In addition, the respective suppliers and consumers of electricity may be connected in a manner combined with these forms. Figure 8 is a diagram showing an example of a

electricity supplier and consumer connected through an electricity supply and consumption line that is different from a plurality of suppliers and consumers of other electricity. In Figure 8, a 712 two-way CCICC converter transports electricity between the power supply and consumption lines Wl, W2 and W3 and can intermediate power supply and consumption between other electricity suppliers and consumers, for example, in power mode. connection of electricity suppliers and consumers, as shown in figure 7C. Electricity transport between power supply and consumption lines W1 through W3 includes a mode that provides and consumes electricity by moving a mobile power generation device and / or a mobile electrical storage device.

INDUSTRIAL APPLICABILITY

According to the present invention there may be provided an electric power system in which a plurality of electric power suppliers and consumers are configured, being alternately interconnected by power supply and consumption control devices without depending on the known electric power system. . BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an explanatory diagram showing an embodiment of an electrical power system of the present invention;

Figure 2 is a block diagram illustrating a configuration of an electricity supplier and consumer and their electrical supply and consumption control device;

Figure 3 is an explaining diagram at a time when a power supply and consumption control device from one electricity supplier and consumer performs AC power supply and consumption with another electricity supplier and consumer in a system. gift electric power

invention.

Figure 4 is an explaining diagram at a time when a power supply and consumption control device from one electricity supplier and consumer performs DC power supply and consumption with another electricity supplier and consumer in a system. of electric power of the present invention.

Figure 5 is an explaining diagram in the case of supplying DC electrical power to a load through household wiring of an electricity supplier and consumer in a power system.

of the present invention.

Figure 6 is an explanation diagram showing a state

where electricity suppliers and consumers are hierarchized in terms of

an electrical power system of the present invention. Figure 7A is an explanation diagram in the case where

electricity suppliers and consumers are connected in a branched way; Figure 7B is an explaining diagram in the case where electricity suppliers and consumers are connected in a star shape; and figure IC is an explaining diagram in the case where electricity suppliers and consumers are connected in a form of network.

Figure 8 is a diagram showing an example of an electricity supplier and consumer connected via an electricity supply and consumption line that is different from a plurality of other electricity suppliers and consumers.

Figure 9 is a block diagram showing an example.

of process of a neural network.

Figure 10 is an explanation diagram showing a

known electric power system.

DESCRIPTION OF REFERENCE NUMBERS

I. Electricity System

II, 12, 132, 14, 11a, 12a, 13a, 14a, 11b, 12b, 13b, 14c, 11c, lld, 12c, 13c, 14c, 15, 15a and 15b - Vendor 51, 61, 71, 81 , 104 and 153 -

Electricity supply and consumption control device

101 and 151 - Power Generating Device

102 and 152 - Electrical Storage Device

103 Charge

511,611,711,811- Control Device 512 Bidirectional AC / DC Converter

612 Two-way AC / AC or DC / AC Converter 706 DC / AC Converter 712 Two-way CCICC Converter 812 Two-way CCICC or DC / AC Converter Communication Line

CL Communication Line L Household Wiring

W, Wl, W2 and W3 - Electricity Supply and Consumption Line

Claims (8)

1. Electricity system, characterized in that a plurality of electricity suppliers and consumers are alternately connected, the electricity supplier and consumer being provided with one or a plurality of power generation devices, one or a plurality of electrical storage devices and one or a plurality of electrical consumption devices, and an electrical supply and consumption control device, wherein each of said electrical supply and consumption control devices judge whether whether or not a power outage or whether or not an excess of electricity has occurred in each of the said suppliers and consumers with the power supply and consumption control device, receiving electricity from another supplier and consumer of electricity provided with said power generating device and / or said device storage facility in the case where a power outage occurred at the electricity supplier and consumer and controlling to distribute electricity to the other electricity supplier and consumer in the case where excess electricity occurred at said electricity supplier and consumer ; and controlling the plurality of said power generation devices in respective suppliers and consumers of electricity in the distribution and receipt of electricity between respective suppliers and consumers of electricity; control being performed automatically or manually based on which a standard rating model for a neural network is formed on a computer, total electricity production, maximum electricity consumption, and the following day's total electricity consumption are predicted based on at least actual past performance data, weather forecast and next-day calendar information and the theoretical amount of solar radiation in good weather of the day; actual performance data of forecast items and calendar and weather information, theoretical amount of past fixed period solar radiation that includes at least the day, being collected for relearning from the neural network, the relearning being performed by a reverse propagation algorithm error values based on the prediction data and actual performance data of the day, and total electricity production, the maximum amount of electricity consumed and the amount of total electricity consumed the next day, are predicted by an updated neural network. Electricity system according to claim 1, characterized in that when the accommodation of distribution and receipt of excess deficient electricity is made between respective suppliers and consumers of electricity based on the total electricity production, the amount maximum electricity consumed, amount of total electricity consumed for each supplier and consumer of electricity predicted by the neural network, said respective electricity suppliers and consumers exchange information about their electricity and synchronization between said respective supply and consumption control devices of electric power. Electric power system according to claim 1 or 2, characterized in that it further comprises an electrical storage device such as a battery capable of operating an electrical device for a predetermined time, said electrical storage device being mounted on the electrical device whose electricity consumption is large or starting electricity is large, such as a refrigerator or air conditioner in each supplier and consumer of electricity. 4. Electricity system, characterized in that a plurality of electricity suppliers and consumers are alternately connected, the electricity suppliers and clients being provided with at least one device selected from one or a plurality of power generation devices. energy, or a plurality of electrical storage devices and a plurality of electrical consumption devices, and an electrical supply and consumption control device, wherein said plurality of electricity suppliers and consumers is divided into a plurality of groups; and said power supply and consumption control device belonging to each group judges whether or not a power outage has occurred or whether or not excess power has occurred in the group; receives electricity from another group to which said electricity supplier and consumer endowed with said power generation device and / or said electrical storage device belongs in the case where power failure occurred in the group and controls to distribute electricity for the other group in the case where excess electricity occurred in the group; and controls the plurality of said power generation devices at said respective electricity suppliers and consumers of the respective groups in the distribution and receipt of electricity between the respective groups, the control being performed automatically or manually based on that classification model. The pattern for a neural network to be formed on a computer, total electricity production, maximum electricity consumed and total electricity consumption for the next day are predicted based on the minimum past actual performance data, weather forecast and calendar information. next day and theoretical amount of solar radiation in good weather, actual performance data of forecasted items, and calendar and time information and theoretical amount of solar radiation from a past fixed period, including at least the day, to be collected to relearn the neural network, the relearn is performed by a reverse error propagation algorithm based on the prediction data and actual performance data of the day, and the total electricity production, the amount of maximum electricity consumed, the amount of total electricity consumed the next day, are predicted by an updated neural network. Electricity system according to claim 4, characterized in that when accommodation of distribution and receipt of excess or deficiency of electricity is realized between respective suppliers and consumers of electricity based on total electricity production, amount of maximum electricity consumed and amount of total electricity consumed for each electricity supplier and consumer predicted by the neural network, said respective electricity suppliers and consumers exchange information about their electricity and synchronization between said respective supply control devices and electric power consumption. Electric power system according to claim 4 or 5, characterized in that it further comprises an electrical storage device such as a battery capable of operating an electrical device for a predetermined time, said electrical storage device being mounted on the device. electric power whose consumption of electricity is large or the starting electricity is large, such as a refrigerator and an air conditioner in each supplier and consumer of electricity. Electricity system according to any one of claims 1 to 6, characterized in that the plurality of said electricity suppliers and consumers are connected to a branched electricity supply and consumption line, a supply line and ribbed power consumption, a radiated power supply and consumption line, a networked power supply and consumption line, and an electric power supply and consumption line combined with these lines. Electricity system according to any one of claims 1 to 7, characterized in that the plurality of said electricity suppliers and consumers are to be alternately interconnected in DC.